/**
 *		Licensed to the Apache Software Foundation (ASF) under one
 *     or more contributor license agreements.  See the NOTICE file
 *     distributed with this work for additional information
 *     regarding copyright ownership.  The ASF licenses this file
 *     to you under the Apache License, Version 2.0 (the
 *     "License"); you may not use this file except in compliance
 *     with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *      Unless required by applicable law or agreed to in writing,
 *     software distributed under the License is distributed on an
 *     "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *     KIND, either express or implied.  See the License for the
 *     specific language governing permissions and limitations
 *     under the License.
 *     
 *     Image Resizer Project
 */

package image.resizer;

import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Image Resizer thread implementation. 
 * 
 * @author Dudarev Ilya
 */
public class RunnableResizer implements Runnable {
	private static final String CLASS_NAME = RunnableResizer.class.getName();
	private static final Logger logger = Logger.getLogger(RunnableResizer.class.getPackage().getName());
	private static final Level FINER_LEVEL = Level.FINER;
	
	private ImageResizer resizer;
	private FileManager fileManager;
	private int maxImageSize;
	private IProgressListener progressListener;
	public RunnableResizer(ImageResizer resizer, FileManager fileManager, int maxSize) {
		if(logger.isLoggable(FINER_LEVEL))
		{
			Object[] params = {"resizer: ", resizer, " fileManager: ", fileManager, " maxSize: ", maxSize};
			logger.entering(CLASS_NAME, "constructor", params);
		}
		this.resizer = resizer;
		this.fileManager = fileManager;
		maxImageSize = maxSize;
		if(logger.isLoggable(FINER_LEVEL))
		{
			logger.exiting(CLASS_NAME, "constructor");
		}
	}
	
	public void setProgressListener(IProgressListener listener)
	{
		if(logger.isLoggable(FINER_LEVEL))
		{
			logger.entering(CLASS_NAME, "setProgressListener", listener);
		}
		this.progressListener = listener;
		if(logger.isLoggable(FINER_LEVEL))
		{
			logger.exiting(CLASS_NAME, "setProgressListener");
		}
	}
	
	public void run() {
		if(logger.isLoggable(FINER_LEVEL))
		{
			logger.entering(CLASS_NAME, "run");
		}
		try
		{
			ImageDescriptor descriptor = fileManager.getNextDescriptor();
			while(descriptor != null)
			{
				String iName = descriptor.getSourceFile().getName();
				if(logger.isLoggable(Level.FINEST))
				{
					logger.logp(Level.FINEST, CLASS_NAME, "run", "Thread: "+Thread.currentThread().getName()+" image: "+iName+" started.");
				}
				ResizeEngine.resizeImage(resizer, descriptor, maxImageSize);
				progressListener.itemCompleted();
				if(logger.isLoggable(Level.FINEST))
				{
					logger.logp(Level.FINEST, CLASS_NAME, "run", "Thread: "+Thread.currentThread().getName()+" image: "+iName+" finished.");
				}
				descriptor = fileManager.getNextDescriptor();
			}
		}
		catch (Exception e) {
			e.printStackTrace();
		}
		if(logger.isLoggable(FINER_LEVEL))
		{
			logger.exiting(CLASS_NAME, "run");
		}
	}
}
